User contributions for SandyK
3 November 2025
- 21:3621:36, 3 November 2025 diff hist 0 2010 AMC 8 Problems/Problem 21 →Solution 2 (working backwards) current
- 21:3621:36, 3 November 2025 diff hist 0 2010 AMC 8 Problems/Problem 21 →Solution 1(algebra solution)